User's Manual

G LOSSARY
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RAM Random Access Memory: The memory in a computer where the operating
system, application programs, and other data currently in use are stored.
RAM is volatile memory where data is lost when the computer is turned off.
Having more RAM in a computer reduces the time the processor takes to
read data, which increases overall computer performance.
RSSI Receive Signal Strength Indicator: A measurement of the strength of a
received wireless signal. The higher the RSSI value, the stronger the
received signal from the antenna.
ROAMING The process where a WiMAX subscriber can move onto another operator’s
network while maintaining a continuous connection.
SOFDMA Scalable Orthogonal Frequency Division Multiple Access: The air interface
defined for mobile WiMAX. SOFDMA is a multiple access method that allows
simultaneous transmissions to and from several users, employing a
subchannel structure that scales with bandwidth.
SERVICE PROVIDER See Internet Service Provider.
SIM Subscriber Identity Module: A standard for a small removable integrated
circuit card that securely stores information used to identify a mobile
wireless subscriber.
SUBSCRIBER STATION A general term for a customer’s terminal equipment that provides
connectivity with a WIMAX network.
TCP/IP Transmission Control Protocol/Internet Protocol: Protocol suite that
includes TCP as the primary transport protocol, and IP as the network layer
protocol.
TLS Transport Layer Security: An standard defined in RFC 5216, EAP-TLS is an
authentication protocol that provides strong security through the use of
client-side certificates.
TTLS Tunneled Transport Layer Security: EAP-TTLS is a protocol extension of
EAP-TLS. The authentication server is authenticated to the client using its
Certification Authority certificate, this establishes a secure “tunnel”
through which the client is then authenticated.
USIM Universal Subscriber Identity Module: See Subscriber Identity Module.